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This study focuses on the characterization of train brake blocks. The brake blocks are an essential organ of train speed control system to ensure comfort and safety to passengers and crew. However, poor quality soles can cause a premature wear of the wheels whose consequences are on the one hand, a damaged brake function, and also high repair costs. Samples were carried out on 3 different batches of brake blocks. Their metallurgical characterization consisted of a study of the hardness and microstructural analysis microstructures and chemical analyzes of the different samples. The results show that the hardness of some soles is greater than that of the wheel, mainly associated with a cementite microstructure. This can lead to a premature wear of the wheels at the expense of brake blocks.

KEYWORDS

Brakes Blocks, Wheel, Microstructure, Hardness, Wear

Cite this paper

Fall, M. , Niang, F. , Hubert, O. and Ndiaye, M. 2017 Metallurgical Analysis of Brake Blocks. Open Journal of Metal, 7, 1-8. doi: 10.4236-ojmetal.2017.71001.





Autor: Mathioro Fall1*, Fadel Niang2, Olivier Hubert3, Mamadou Babacar Ndiaye4

Fuente: http://www.scirp.org/



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